Table 3-3. Troubleshooting (Cont)
MALFUNCTION
7. L O W oil pressure indi-
cated on oil pressure
gage.
8. Noisy turbocharger .
9.
Turbocharger leaks
oil.
10. High oil pressure
indicated on oil
pressure gage .
11. High coolant temper-
ature indicated on
coolant temperature
gage.
PROBABLE CAUSE
a.
b.
c.
d.
e.
f.
g.
a.
b.
a .
b.
a.
b.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
Oil level too low.
Defective oil pressure
gage.
Defective oil pressure
t r a n s m i t t e r.
Clogged lube oil filters.
Improper viscosity oil
Worn oil pump.
Worn bearings.
Improper
turbocharger
lubrication.
Loose turbocharger end
plates.
Loose turbocharger
end plates.
Defective turbocharger
housing.
See b, c and e from
malfunction 7.
Oil pressure regulator.
Coolant level low.
High coolant temperature
due to incorrect coolant.
Lube oil level low.
Defective or improperly
adjusted fan belts.
Insufficient heat transfer
through radiator.
Defective coolant
thermostat.
Defective water pump.
Clogged radiator.
Generator set over-
loaded.
Defective coolant tem-
perature transmitter.
Defective coolant tem-
perature gage.
CORRECTIVE ACTION
a.
b.
c.
d.
e.
f.
g.
a.
b.
a.
b.
a.
b.
a.
b.
c.
d.
e.
f.
g.
h
i.
j.
k.
Add oil until proper level is indicated on oil
level gage (para 3-4).
Replace gage (para 3-121).
Replace transmitter (para 3-193).
Service filters (para 3-4).
Drain crankcase and fill with proper lube oil
(fig. 3-l).
Replace oil pump.
Replace bearings.
Clean turbocharger oil passages (para 3-203).
Tighten end plate screws (para 3 -203).
Tighten turbocharger end plate screws
(para 3-203).
Inspect housing. Replace turbocharger
(para 3-203).
See b. c and e of malfunction 7.
Replace oil pressure regulator
Add coolant (para 3-41).
Check for proper coolant mixture. Correct
or replace as necessary (para 3-41).
Add lube oil (fig. 3-l).
Adjust or replace fan belts (para 3-183).
Check that air inlet doors are open.
Check shutter operation (para 3-171).
Insure that there is at least 10.200 CFM or
12,300 CFM cu. ft. air supply (fig. 2-l).
Replace thermostat (para 3-209).
Replace water pump (para 3-206).
Replace radiator (para 3-172).
Check that the generator load does not ex-
ceed the ratings specified on the kilowatt
capacity nameplate 70-1345 (M2), 70-1346
(Ml).
Replace transmitter (para 3-209).
Replace gage (para 3-120).
C h a n g e 3
3-23